Embroidering-machine.



A. RUSSELL-j EMBROIDERING MACHINE. APPLIOATION FILED SEPT. 6,1910.

Patented Oct. 3, 1911.

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UNIT STAES ALBERT RUSSELL, OF NEW YORK, N. Y.

EMBROIDERING-MACHINE.

Specification of Letters Patent.

Patented Oct. 3, 1911.

Application filed September 6, 1910. Serial No. 580,551.

To all whom it may concern.

Be it known that I, ALBERT RUssnLL, a citizen of the United States,residing in Manhattan borough of the city of New York, in the county andState of New York, have invented a new and useful Improvement inEmbroidering-Machines, of which the following is a specification.

My improvement is specially applicable to the type of machine covered byLetters Patent of the United States, Number 826,764, and is designed tocontrol the vibration of the needle so as to insure certainty andprecision in its work.

In existing machines, the needle is car ried on the lower end of aneedle bar whose upper end is inclosed within a collar provided with agrooved outer surface into which is fitted the forked extension of acarrying frame, which gets its reciprocal motion through the working ofa cam con nected with the machine frame. The needle-bar is held intoposition by the collar the upper end of which is fitted into an openingin a collar plate which is fastened onto the upper surface of thecarrying frame extension. The needle bar is revolved by gearingconnected with the machine frame, in order to keep the eye of the needlein position to present the loop of the thread properly to the shuttle;and the friction of the collar against its embracing plate and forkedprongs results in the wearing of the bearing surfaces so that the barvibrates laterally in its reciprocal motion, and the looseness of thisupper end is reflected at the needle end of the bar and causes theneedle frequently to miss the braid and strike against the needle plateand break, thus entailing inferior work and expense of repairing.

My improvement is in the collar and collar plate and consists in anextension of the plate over in front of the collar, and an adjustingblock fitted to the face of the collar and within the forked extensionof the frame. This block by the bearing of a screw set into the collarplate extension is adjusted to check the vibration of the needle bar bytaking up the looseness resulting.

from the wearing of the bearing surfaces of the collar.

My invention is illustrated in the accompanying drawing in the severalfigures of which like letters indicate like parts.

Figure 1 is a side elevation, partly in section, showing the needle barand its collar embraced within the extension of the carrying frame; andshows my improved collar plate and adjusting block and screw, and showsthe needle in contact with braid being stitched. Fig. 2 is a top view ofthe collar plate showing the needle bar and collar within its opening.Fig. 3 is a section view indicated on the lines 33 in Fig. 1. Fig. 4. isa perspective view of my improved collar plate with its extension andadjusting block and screw and the collar opening.

A, is the extension of the carrying frame, I, terminating in the prongs,a, a, embracing the grooved collar, B.

C, is the needle bar to which the collar, B, is secured by screw; m, isthe opening in the collar plate within which the collar is inclosed; and0, is the opening in the collar inclosing the needle bar; cl, is theopening in the collar through which the braid, D, passes down to thestitching point.

M, is my improved collar plate, fastened to the frame by the screw, 19,-and terminating-in the extension M, provided with the screw, n, whichserves to press the adjusting block, N, against the collar to check thelooseness and vibration resulting from the wearing of the collar and itsembracing plate and prongs.

I claim:

1. In an embroidering machine the combination of a needle barreciprocating frame, having a forked projection, a needle bar, a collarsecured to said needle bar and embraced by said forked projection, acollar plate having an extension mounted on the forked projection andsurrounding said collar, a wear compensating block fitted to said collarand located in said forked projection and means carried by saidextension for adjusting said block.

2. In an embroidering machine, having the needle bar, O, and the collar,B, secured thereto; and the needle bar reciprocating frame, I, providedwith the forked extension, A, terminating in the prongs, a, a, whichembrace the collar, B; the wear compensating block, N, fitted againstthe collar, B, between the ends of the fork prongs, a, a, and the collarplate M, mounted on the forked extension, A, and embracing the col lar,B, and provided with the extension, M, and adjusting screw, 11,, andadapted, by the operation of said adjusting screw against New York andState of New York this 31st the wear compensating block, N, to take upday of August, A. D. 1910.

looseness and Vibration resulting from the Wearing away of the bearingsurfaces of ALBERT RUSSELL 5 the collar, B; all combined substantiallyas Witnesses:

and for the purpose set forth. DUNCAN CAMPBELL,

Signed at New York city in the county of G. D. WEAVER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

